19930225

素因数分解:

$5^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1867}}^1$

素因数の和:1945

約数の個数: 24

約数和(自身を含む): 28722368

約数和(自身を除く): 8792143

約数列:

[1, 5, 7, 25, 35, 61, 175, 305, 427, 1525, 1867, 2135, 9335, 10675, 13069, 46675, 65345, 113887, 326725, 569435, 797209, 2847175, 3986045, 19930225]

約数ペア:

[(1, 19930225), (5, 3986045), (7, 2847175), (25, 797209), (35, 569435), (61, 326725), (175, 113887), (305, 65345), (427, 46675), (1525, 13069), (1867, 10675), (2135, 9335)]